Finding the Fourth Proportional to 31,459.02, 47,196.62 and 9,271.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,459.02 : 47,196.62 = 9,271.68 : x
2. Step 2: Convert to fraction form
   31,459.02/47,196.62 = 9,271.68/x
3. Step 3: Cross multiply
   31,459.02x = 47,196.62 × 9,271.68
4. Step 4: Simplify right side
   31,459.02x = 437,591,957.72
5. Step 5: Solve for x
   x = 437,591,957.72/31,459.02
6. Step 6: Final answer
   x = 13,909.90